Machine for doubling silk or other threads



(No Model.) 5 sheets-sheet 1.

J. A. KEYES.` MACHINE EUR DOUBLING SILK 0R OTHER TERE-ADS. No. 600 ,726.

Patented Mar. 15,1898.

MM2/M ZUM/755555 (No Model.) 5 sheets-sheen 2.

J. A. KEYES. MACHINE POR DOUBLING SILK OR OTHER THREADS. No. 600,726.Patented Mar. 15,1898..

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J. A.l KEYES. MACHINE EOE EOUELING SILK 0E .oTHEE THREADS.

No. 600,726. PatentedjlVIar. 15,1898.

(No Model.) 5 Sheets-Sheet 4.

JEHHYES. MACHINE EOE HOUBLIHG SILK 0E OTHER THREADS. ,Ne 600,726.Patented Mar. 15,. 1898.

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(No Model.) v 5 Sheets-Sheet 5.

J. A. KEYES. MACHINE FOR DOUBLING SILK 0R` OTHER THREADS. No. 600.726.Patented Mar. 15.1898..l

Nrrnn TATns PATENT Prion.

JAMES A. KEYES, OF NEW YORK, N. Y., ASSIGNOR TO N. S. PERKINS, OF NEWLONDON, CONNECTICUT.

MACHINE FOR DOUBLING SILK OR OTHER THREADS..

SPECIFICATION forming part of Letters Patent No. 600,726, dated March15, 1898.

Appiicttitn tied Aprn 1,1397. sentira 630,270. montati.)

To all whom, it wtcty concern.-

Beit known that 1, JAMES A. KEYES, a citizen of the United States,residing at New York, in the county of New York and State of New York,have invented certain new and useful Improvements in Machines forDoubling Silk or other Threads, of which the following is aspecification.

My invention relates to improvements in 1o machines. for doubling silkor other threads;

and the main object of my improvement is eficiencyin operation,particularly with reference to being able to run the machine at a highspeed and with reference to the uni- 1 5 formity in the tension of thedifferent strands 2o ing or winding device.

united.

In the accompanying drawings, Figure 1 is a perspective view of ythatportion of the machine which delivers the threads to the twist- Fig. 2is a side elevation, on a smaller scale, of the principal parts of thecomplete machine. Fig. 3 is a plan view of the frame of the machine andthe principal driving parts, several of the smaller 2 5 parts beingomitted, the scale being the same as in Fig. l. Fig. 4is an enlargedplan view of the feeding-cylinder andits appurtenances, some of theparts being shown in horizontal section. Fig. 5 is a plan view of thedeliver- 3o ing-rolls and adjacent parts, some of which 35 parts on asmaller scale than Fig. 6.

4o differently sectioned; and Fig. 10 is a corresponding view of some ofsaid parts in a still different position.

Where the parts are on a smaller scale and crowded, I have sometimesomitted some of 45 the reference-numerals as to parts which are clearlyshown and designated by proper numerals in other figures.

' A designates the frame of the machine, having mounted upon its lowerpart a shaft 5 11, which carries the driving-pulley 12 and loose pulley13, together with the pulley 14 for the belt 15, and another pulley(concealed from view in the drawings) for carrying the belt 16, whichruns to the driving-pulley 17 at the upper part of the machine. The saidshaft 11 also carries a worm 18 for driving the worm-wheel 19 on theshaft 20, which carries the cam 21. A belt runs from the pulley 14 tothe pulley 22 on the counter-shaft 23, which shaft carries at its otherend a pulley 24, around which is a belt 25, leading to the small pulley26, for driving the winding and twisting spindle 27, a loose pulley 28being on this winding and twisting spindle immediately below the fastpulley 26. The belt is guided in its course by means of the idler 29 andextends through the shipper 30 on the shipper-shaft 31. Surrounding thereceivingbobbin 32 at the upper end of the twisting or winding spindleis a sliding frame 33, to which is attachedarod 34, that rests upon thecamwheel 21, whereby the frame 33 is made to rise and fall and deliverthe united strands of thread 35 from the flier 36 to the bobbin 32, allsubstantially as in ordinary twistingmachines. The twisting mechanism ofitself is not of my invention, and I may substitute therefor anyordinary winding or winding and twisting mechanism.

My invention relates to the devices which deliver the united thread tothe receivingbobbin 32. I have shown my improvement as arranged foruniting three threads or strands into one. These three threads orstrands 78 are taken from the respective bobbins 37, Fig. 1, whichbobbins may be supported either horizontally or otherwise on anyconvenient support, as 38, to separately deliver their threads to thefeeding-cylinder 39. This feeding-cylinder is driven by means of thebelt 16 on the pulley 17, and it consists of a plain cylindrical roll.It is driven at a speed slightly in excess of that at which the threadwill be wound upon the bobbin 32. Back of this feeding-cylinder is abracket or stationary frame 40, bearing two horizontal arms 41 and 42,and between these arms are arranged as many shafts or vertical rods 43as there are threads to be united. The upper arm 41 is omitted from Fig.4 in order to better show the rods 43, which rods are delicatelypivoted,so as to turn easily under the influence of the threads. Upon each ofsaid rods is fixed a lever or arm 44, the front end of which is forkedand provided with set-screws 45, which are pointed on their ends andenter sockets within the pivotal blocks 46 within the forked end of saidarms. A pulley-frame 47 with like forked ends and set-screws 48, whichscrews also enter said pivotal blocks, is connected thereby to saidarms. Said frames have mounted in them the pulleys 49, which rest uponthe summit of the feeding-cylinder. They are formed of metal or areotherwise weighted to act as a feeding device in connection with thefeeding-cylinder 39. The forked ends of the arms and pulley-frames,together with the blocks and set-screws, form a delicate double jointwhich is practically universal, whereby the pulleys and frames may moveup and down von a horizontal axis or may swing. laterally on` a verticalaxis. In addition to the arms 44 each of the rods 43 is provided with alever-arm 50. (See Fig. 4.,) Upon the bracket 40 is a suitable shaft 51,upon which is mounted three rocking sleeves 52, each of which sleevesbears an upwardlyprojecting arm 53 for engagement with the lever-arms 50of the vertical rods 43 and also with the forwardly-extendin g levers54,whose ends terminate in suitable thread-guides 5.5. These levers areprovided with attachable and detachable weights 56. A notchedbracketplate 82 is arranged on the frame of the machine in connectionwith the swinging arms 44 to limit the extent of the swinging movement.In front of the feeding device I arrange the deliveryrollers 57 andtripping and supporting rollers 58, the same being arranged uponsuitable shafts 59 and 60 and driven by belts 61,1eading from theirrespective pulleys to driving-pulley-s 62 by the side of the pulley 17on the shaft of the feed-ingcylinder. The supporting-roller 58 is also atrip-roller and is provided with grooves 63, having set within themcross pins or trips 64. Said supporting and tripping roller is alsoprovided with thread-grooves 65, which correspond with likethread-grooves 65 in the delivery-roller.

Betweenv the supporting. and trip roller 58 and the delivery-roller 57is a bracket 66, secured in any proper manner to a part of the frame andhaving pivotally connected toit, by means of the screw 67, a pair offorked arms 68. These forked arms carry a shaft or rod 69, whose centeris eccentric to that of the screw 67, -upon which the forked arms canswing. Upon this shaft 69 I pivot three tripping-fingers 70, the upperends of said ngers being provided with suitable thread-guides 71. rIhesefingers 70 are arranged in alinement with the grooves 63 in thesupportingand tripping roller 58, as best shown in Fig. 5. The outerends of the forkedarms 68 embrace a roller 72, which is pivoted betweenthe arms of the bifurcated lever 73, which lever, by its middle portion,is pivoted to a bracket 74 on the upper end. of the shippershaft 31, asat 7 5, while the lower end of said lever is pivoted to a link 76, whichlink is in turn pivoted to the bracket-arm 77, through which theshipper-shaft 31 is guided in its vertical movements. Fig. 7 shows thislever in its normal position, with the threads 78 in i working order,holding the fingers 70 in position, while the link 76 and connecting-armof the lever 73 are thrown a little forward of their longitudinalalinement, so as to hold the parts in the position shown.

The threads 78 after leaving the feedingcylinder 39 pass through theeyes 55 of the weighted levers 54, then over the roller 58, through theguides 71 of the fingers 70, over the delivery-roller 57, to theguide-fingers 83, and after passing said fingers are twisted into theunited thread 35, which, passing through the eye 84, goes through theflier 36 to the receiving-bobbin 32,. In Fig. 7 I have shown the roller72 partly in section and represented one of the arms of the bifurcatedlever 73 as broken off i-n order to` more clearly show the relation ofthe forked arm 68 to said roller. In case any one of the threads passingthrough the guides 71 should break, the fingers 70 will fall forward bygravity, so as to rest upon the upper side of the roller 72, as shown inFig. 8. In this figure I have sectioned the supportingandv trip roller58 and also the shaft orl rod 69, upon which the fingers are mounted inorder to better show their relations. When the finger drops down andrests upon the roller 72, as shown in said Fig. 8, the first trip-pin,moving in the direction indicated by the dart in said gure, will en gagethe end of said finger and force it downwardly, thereby pressingdownwardly the roller 72, and force the outer end of the bifurcatedlever 73 downwardly and forwardly, thereby throwing the upper end of thelink 76 back of the vertical plane of the pivot 75, and permit the partsto fall by gravity to the position shown in Fig. 9. After a finger hasturned on its axis69 to the position shown in Fig. 8 the parts connectedwith the forked arm 68 then swing downwardly on the axis 67, and forthat reason I have shown said axis 67 in section in Fig. 9. It will beseen that as the lever 73 moves from the position shown in Fig. 7 tothat shown in Fig. 9 the bracketarm 74 will fall, and thereby drop theshipper-shaft 31 downwardly, so as to carry the belt 25 from the fastpulley 26 to the loose pulley 28, (see Fig. 2,) and thereby stop therevolution ofthe twisting or winding spindle. Upon the frame of themachine is a lever 788, provided with a horizontal arm 9. In order torestore the parts to their normal position, this lever is operated toforce the horizontal arm 79 against the lower end of the fingers 70, thefirst operation of which is to swing the fingers on their axis 69 untiltheir points are elevated high enough to clear the stop-pin 64, as shownin Fig. 10. In this IOO position it will be noticed that the axis 69 is`below the axis 67 instead of in front thereof,

and consequently as the fingers swing upon horizontal arm 79 of thelever acts upon the forked arms 68 to turn them on the axis 67` and tocarry said arms and fingers back to their normal position. By thisconstruction I am able to use the said lever to move the parts from theposition shown in Fig. 9 to that shown in Figs. 7 and 8. The brokenthreads being mended and properly placed in the thread-guide 71 themachine will be again in running order, as, shown in Fig. 7.

I have thus described my tripping arrangement as having conjointoperation with the mechanism by which the threads are supplied theretoor taken therefrom; but I may substitute other thread-supplyin gmechanism for that herein described.

I will now describe more particularly the mechanism for delivering thethreads to the The threads 78,

winding or twisting device. extending downwardly from the bobbins 37,pass through suitable thread-guides 80,which guides are arranged on asuitable bracket 8l. This bracket may be provided with any suitableprovision for adjusting it from front to rear and laterally-as forexample, the rear-` wardly-extended arm 85, Fig. l, of the bracket 8lpasses through a socket-piece 86, having a set-screw 87 for securingsaid arm therein, whereby on loosening said set-screw the entire bracketmay be moved from front to rear to adjust it, and then the set-screw canbe tightened to hold the bracket in place. The bracket 81, in which thethread-guides are directly mounted, is jointed by a similar socket andset-screw (hidden from view in Fig. l) for adjusting in like manner thebracket 8l on the bracket-arm 85 from side to side relatively to therollers 49. guides 80 may be so set relatively to the centers of therods 43 and roller 49 as to be a little to one side of the middle ofsaid roller when the arm 44 and pulley-frame 47 are in a line whichextends squarely across thefeeding-cylinder 39, whereby the pull of thethread will have a tendency to throw the rollers 49 to one side and runoff from the thread 78. The middle arm in Fig. 4 represents the parts inthis position. The weight 56 upon the levers 54 will have a tendency tohold the arms 53 of the rocking sleeves 52 in contact with thelever-arms 50 on the rods 43. The wheels or rollers 49 are so heavy thatwhen they are riding ou one of the threads they press the thread firmlyon the feeding-cylinder and act in connection therewith as a feed t-opull the threads from the bobbins 37. As before stated, the speed of thecylinder is such that when the feed ing-cylinder and wheels 49 acttogether to draw the thread from the bobbins they deliver the threadfaster than the receiving-bobbin 32 will take it up. It necessarilyfollows that the thread between the feed- The threadin gcylinder 39 andthe supporting-cylinder 5 8 will become slack. The weighted levers 54immediately descend and take up all the slack in the thread as fast asit is paid out and thereby constantly exert on the thread a uniformtension equal to the force of the weighted levers on the thread. Asthese levers descend the arms 5l on the rocking sleeves come forward andthereby permit the arm44 to swing to the left, as viewed in Fig. 4,whereby the wheel or pulley 49 runs off from the thread, as shown in theright-hand pulley in Fig. 4. As soon as the wheel or pulley 49 thus runsoff the thread the feed is immediately stopped, so that the twisting orreceiving bobbin 32 begins toV take up the slack between the feeding-cylinder and the supporting-roll and thereby lifts the lever 54. Whensaid levers are lifted, the arms 53V are forced backwardly against thearm 50, so as to swing the arm 44, carrying the pulley 49, to the rightand draw said pulley upon the thread again, as shown in the left-handone of the rollers 49 in Fig. 4. I have represented this roller intheposition that it rsthas after being thus drawn upon the thread; butinasmuch as the arm 44 will now be held nearly in this position by theweighted lever the pulley-frame and pulley will swing a little to theright and ride over the thread to bring it nearer the middle of saidpulley than the position shown. When thus upon the thread again, itfeeds faster than the receiving-bobbin can take it up, and the lever isagain depressed to take up the slack, and so on repeatedly, the feed'automatically stopping and starting itself as occasion requires, whilethe threads between the delivery-cylinder and the receiving-bobbin areall of them kept under a uniform tension by the weighted levers. Theoperation of the machine is so delicate that the threads between thesupporting-roller and the feeding-cylinder are never brought to astraight line, but always show an angle of depression, while at the sametime the amount of slack will never be so great as' to cause the leversto descendfar enough to come in contact with their stop 88. This stop ismerely for the purpose of preventing the arms from swinging down too farwhenever a thread may break or when the machine is stopped. In Fig. 6

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I have shown a detached view of one of `the weights, which forconvenience of applying to the levers is slotted, as at 822, andprovided with a set-screw 833, extending into said slot, by means ofwhich the weight may be attachably and detachably fastened to thelevers. It is evident that the weight may be adjusted todifferent'positions on the levers, or a lighter or heavier weight maybeapplied, as desired.

By my improvement the tension of the different threads being united isvery uniform and is always equal to the weight upon the slack portion ofthe threads, and the machine runs so smoothly and easily that it may berun at a high speed.

By feeding from the bobbins faster than the receiving-bobbin can take upthe threads maybe wound upon the receivin g-bobbin under a less tensionthan is required to pull the threads from the delivery-bobbins, and thisis one feature which enables the machine to be run rapidly.

I do not wish to limit myself to the details of construction, but maymake such changes and substitutions as fairly fall within the spirit andscope of my invention.

I claim as my invention- 1. The combination ,of a shipper with the lever73 and link 7 6 all pivotally connected, the forked arms 68 engaging theupper member of said lever and pivoted to a suitable bracket, thetrip-iin gers having thread-guides Vand pivotally mounted on said forkedarms,

and the trip-roller 58, having trips 64, for engaging said fingers andoperating the shipper through said lever 7 3 substantially as described.

2. The combination of a shipper with the lever 73 and link 7 6 pivotallyconnected therewith, the forked arms 68 engaging the upper member ofsaid lever and pivoted to a suitable bracket, the trip-fingers havingthreadguides mounted thereon, said ngers being pivoted on said forkedarms eccentrically to the axis of said arms, and the trip-roller 58having trips 64 for engaging said fingers, whereby the trip-fingers maybe turned into a position that will clear the trips 64 preparatory toreturning the parts to their normal position substantially asdescribed.'

The combination of the shipper-tripping lever 73, with the forked arms68 engaging the upper part ofsaid lever and pivoted on a fixed part ofthe machine, the shaft or axis 69 secured to said arms 68 eccentricallyto the pivots for said arms, the trip-fingers mounted on said axis 69and having thread-guides, a forward pointed end and downward extensionbelow said axis, the trip-roller, bearing trips 64 adapted to engage thepointed end of said lingers when they are thrown forwardly, and areturning-lever having an arm 7 9 adapted to first engage the downwardextension of the said fingers to move them on their axis and then tovmove the parts to their normal position by simultaneously acting on thesaid fingers and the forked arms substantially as described.

4. The combination of mechanism for driving a receiving-bobbin with anautomatic stophaving thread-guides 55 for engaging the threads at apoint between said supportingroller and feeding-cylinder, and mechanismconnecting said levers 54 and rollers 49, whereby lifting said levers 54will move the rollers over the threads on the feeding-cylinder and startthe feed substantially as ldescribed.

6. In a doubling-machine, the combination of the feeding-cylinder 39with a plurality of independent pulleys or rollers acting in connectionwith said cylinder as a feed, the frames in which said pulleys orrollers are mounted, the swinging arms 44 on shafts or rods 43, saidarms and pulley-frames being pivotally connected, a lever-arm 50 on eachof said shafts or rods, and weighted levers 54 carrying thread-guidesand also carrying arms 53 for acting in connection with the lever-arms50 to move the pulleys or rollers 49 laterally on the feeding-cylinderwhen the said levers 54 are being raised as described.

'7. The combination of the feedin g-cylinder, a plurality of pulleys orrollers 49 acting in connection with said cylinder as a feed, the rockshafts or rods 43 by which the frames carrying said rollers are pivotedto swing the said rollers 49 laterally, the thread-guides 80, each setto one side of the said rock shafts or rods 43, whereby the said pulleyshave a constant tendency to run off the threads and stop the feed, andmeans operated by taking up the slack in the thread to move the saidrockshafts and thereby carry said pulleys 49 onto the thread after thesaid pulley has run off and stopped the feed, substantially asdescribed.

JAMES A. KEYES. Witnesses:

WILLIAM N. BREMER, VILLIAM EIFLER.

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